When gaining access to a device or service, a PIN code (Personal Identification Number) is used to verify the user’s identity. The PIN code’s origins may be traced to the middle of the 20th century, when Automatic Teller Machines were the first to employ it as a security mechanism (ATMs).
In 1967, Barclays Bank in London, UK, put up the first ATM. The PIN code was used to validate the user’s identity and prevent unwanted access, and the ATM required a plastic card and a personal identification number to access the account.
PIN codes have evolved into a typical form of device and service authentication over time, including mobile phones, credit cards, and internet accounts. Due to their complexity, PIN codes are widely regarded as a secure form of authentication.
PIN codes are now a crucial part of contemporary security systems and are frequently used to safeguard sensitive data and transactions.
